Apparatus for squeezing out liquids from web-shaped textile materials



July 25, 1967 A. BISANG 3,332,260

APPARATUS FOR SQUEEZING OUT LIQUIDS FROM WEB-SHAPED TEXTILE MATERIALS Filed June 4, 19 65 3 Sheets-Sheet 1 July 25, 1967 B|SANG 3,332,260

APPARATUS FOR SQUEEZING OUT LIQUIDS FROM WEB-SHAPED TEXTILE MATERIALS Filed June 4, 1965 3 Sheets-Sheet 2 mum, 44x M W July 25, 1967 BISANG 3,332,260

APPARATUS F UEEZING OUT LIQUIDS FROM WEB-S TEXTILE MATERIALS Filed June 4, 1965 3 Sheets-Sheet 5 United States Patent ABSTRACT OF THE DISCLOSURE By providing two stationary rollers which can be selectively driven, a variety of possibilities for the passage of a fabric web to be treated is secured and it is possible to pass such a web out of the roller assembly in vertical upward direction as well as in a horizontal direction which is advantageous with respect to certain new dyestuffs for textile materials which require the web to leave the dye bath vertically in order to obtain an absolutely uniform color on 'both sides of the fabric.

The present invention has reference to an improved apparatus for squeezing out liquids from webor sheetlike textile materials incorporating four rollers having their axes substantially in parallelism, of which two drivable rollers are stationary and two rollers serving as pressure or squeezing rollers are displaceably arranged.

Such apparatuses typically embody two or more rollers, depending upon the operations to be carried out upon the textile material. The textile material is towed by at least one driven roller between the aforesaid two or more rollers. These known apparatuses comprise two roller stands or frames mounting the rollers. Supports can be arranged beneath the rollers which are configured in accordance with the arrangement of the rollers. Additionally, in the region of the supports and at other locations there are mounted deflecting rollers for the textile material.

Now, the present invention is directed to an improved apparatus for squeezing liquid from web-shaped textile materials and contemplates constructing the apparatus such that the roller arrangement can be accomrnodated to almost all operating conditions and is suitable for each type of dyeing and each finishing liquid, so that no compromise is necessary, on the one hand, between the roller arrangement most favorable for the dye and the fabric, and, on the other hand, the arrangement possible with the existing machine.

Generally speaking, the physical structure of inventive apparatus which enables this objective to be achieved is characterized by the feature that two rollers are vertically arranged above both of the other rollers.

More specifically, the inventive apparatus for squeezing out liquids from web-shaped textile materials or the like comprises four rollers arranged with their axes substantially in parallelism with one another, two of these rollers are drivable and fixedly mounted, and means are provided for mounting the other two of said rollers defining squeezing rollers so as to be displaceable. According to a very important aspect of the invention, a given two of the four rollers are disposed above both other rollers to provide two pairs of superimposed rollers. In one such pair of superimposed rollers the uppermost roller is stationarily mounted, whereas for the other pair of superimposed rollers the lowermost one is stationarily mounted. Such uppermost and lowermost rollers define the aforesaid twodrivable and fixedly mounted rollers.

Accordingly, it is an important object of the present invention to provide an improved apparatus for squeez- I 3,332,266 Patented July 25, 1967 ing out liquids from textile webs which is relatively simple in construction, highly reliable in operation, and enables accommodation to almost all operating conditions encountered in practise.

Other features, objects and advantages of the invention will become apparent by reference to the following detailed drawings in which:

FIGURE 1 schematically illustrates in side view a preferred embodiment of inventive apparatus for squeezing out liquid from Web-shaped textile materials;

FIGURES 2 to 11 schematically depict different adaptations and possibilities of application of the basic inventive apparatus of FIGURE 1, with certain auxiliary structure shown in certain of these figures to enable performance of the described textile processing operations.

Considering now the drawings, and with attention initially directed to FIGURE 1, there is shown two stationary rollers 10 and 11 mounted in known manner to the schematically illustrated frame 10a and 11a respectively. Rollers 10 and 11 are operatively connected in suitable manner wit-h drive motor means 61. The arrangement is effected such that both rollers 10 and 11 can be driven dependently or independently of one another, so that either only one or only the other or both rollers 10 and 11 are driven. Drive arrangements suitable for this purpose are well known and, if necessary, can be also readily designed by one skilled in the art, so that further details can be readily omitted, particularly since such subject'matter per se does not constitute part of the invention, nor are details thereof necessary for understanding the inventive concepts.

In the example illustrated, a drive pulley 62 of an electric motor 61 is connected by a belt 63 to a pulley 64 coaxial with the shaft of the roller 11. A pulley 65 of the same diameter as pulley 64 and also coaxial with the shaft of roller 11 is connected by a belt 66 to a pulley 67 on the shaft of roller 10. A clutch 68 on the shaft of roller 11 can be caused to selectively engage the pulley 64 with the shaft of the roller 11, or with the pulley 65, or simultaneously with both pulley 65 and the shaft of roller 11.

Conventional roller sealing plates 60 are provided laterally of the four rollers at both ends thereof for liquid tight closure of the treatment space in between the rollers, as will be described later.

Additionally, two pivotable rollers 12 and 13 are provided which are mounted to double-arm levers 14 and 15 respectively. It will be understood that each roller 12, 13 is mounted at each end with a respective one of such double-arm mounting levers 14 and 15, and for convenience in illustration in the drawing only one such lever associated with each roller 12, 13 is visible, and the description to follow will only concern itself with a given one of the levers for each roller. Double-arm lever 14 is mounted by means of an eccentric shaft 16 to schematically illustrated frame 16a whereas lever 15 is mounted to the same frame 16a by means of an eccentric shaft 17. In order to turn both of the eccentric shafts 16 and 17 each are connected by a respective strap 18 and 19 or otherwise with a respective hydraulic or pneumatically operated work cylinder 20 and 21. The work cylinders 20 and 21 are articulated via a hinge :joint 22 and 23 respectively to the machine frame 16a,

flow of an appropriate fluid medium to the work cylinders 2t), 21 is schematically depicted in the drawings by conduits 20a and 21a respectively. Rocking of the eccentric shafts 16 and 17 causes corresponding displacement of the double-arm mounting levers 14 and 15 in the direction of the double-head arrows A and B respectively, and laterally of the stationary rollers and 11 respectively. It will also be recognized that the piston rods 30 and 31 of the pistons 30a and 31a of two further work cylinders 28 and 29 are hingedly connected with the hinge joints 26 and 27 respectively of the doublearm levers 14 and 15 respectively. These work cylinders 28 and 29 in turn are hingedly connected with the machine frame 16a via hinge joints 32 and 33 respectively. Work cylinders 28 and 29 are likewise double-acting so that the mounting levers 14 and 15 can be rocked in both clockwise and counterclockwise direction about the eccentric shafts 16 and 17 respectively, whereby the rollers 12 and 13 mounted upon the levers 14 and 15 respectively are pivotable in the direction of the arrows C and D respectively. The means for the inflow and outflow of fluid medium into and out of the work cylinders 28 and 29 is schematically depicted by conduit means 28a and 29a respectively. Pivotable movement of the rollers 12 and 13 in the direction of the arrows C and D respectively, can be carried out with displacement of the levers 14 and 15 in the direction of the arrows A and B respectively.

Briefly summarising the described arrangement of the rollers 10, 11, 12, 13 it will be appreciated that the axes of these rollers are in substantial parallelism with one another. Two of the rollers, namely rollers 10 and 11 are drivable and fixedly mounted, whereas the other two rollers 12 and 13 provide squeezing rollers mounted so as to be displaceable. Moreover, these four rollers 10, 11, 12, and 13 are arranged such that a given two rollers 12 and 11 are arranged above both other rollers 10 and 13 respectively, to provide two pairs of superimposed rollers 12, 10 and 11, 13. For the pair of rollers 10, 12 the lowermost roller 10 is stationary and for the other pair of rollers 11, 13 the uppermost roller 11 is the one that is stationarily mounted. Finally, it will be observed that a respective one of each of the movable rollers 12, 13 is mounted to a respective side of, and in overlying relationship with respect to, the stationarily mounted rollers 10, 11.

The mode of operation of the described apparatus will be more fully explained in conjunction with FIG- URES 2 to 11 depicting different possibilities of use of the inventive apparatus. It will be understood that the basic physical structure of the embodiment of FIGURE 1 appears in each of the arrangements shown in FIG- URES 2 to 11, yet whenever certain auxiliary physical structure is required in a given one of these FIGURES 2 to 11 for carrying out a desired treatment operation upon the textile material then such additional physical structure will be considered during the course of describing the corresponding figure.

Considering the arrangement of FIGURE 2, it will be recognized that both of the pivotable rollers 12 and 13 are uniformly pressed against both stationary rollers 10 and 11 in the direction of the arrows C and D respectively by means of the associated drive means i.e. work cylinders 28 and 29 and pistons 30a and 31a respectively. Only the lower loller 10 of the two stationary rollers 10 and 11 is driven. A suitable treatment liquid 40a is located in the hollow compartment 40 formed by the four rollers 10, 11, 12 and 13, also in the trough 41 formed by both rollers 11 and 12, as indicated at 41a. Liquids 40a and 41a can be the same or different. In order that these liquids cannot flow away at both ends of these rollers there are provided thereat in known manner suitable closure plates (not shown). Furthermore, two deflecting rollers 42 and 43 are provided within the hollow compartment 40 to enable contact of the treatment liquid 40a contained in the hollow compartment with both faces of a textile web 44. Textile web 44 is wound off a nonillustrated supply roller and guided vertically from above by suitable non-illustrated deflecting rollers between both of the upper rollers 11 and 12. In so doing, the textile web 44 initially is immersed in the treatment liquid 41a located in the trough 41. Such treatment liquid is again immediately squeezed out between both rollers 11 and 12. The textile web 44 pretreated in this manner then arrives at the second treatment liquid 40a located in the hollow compartment 40. The textile web 44 guided over the deflecting roller 42 then arrives between both rollers 11 and 13 between which the excess portion of the second treatment liquid 40a is squeezed out. Now textile web 44 is guided over further deflecting rollers 45, 46 or other mechanism, for instance an illustrated dryer e.g. of the type later to be considered and shown in FIG- URES 10 and 11, vertically from below between both lower rollers 10 and 13 arriving a second time in contact with the treatment liquid 40a located in the hollow compartment 40. The textile web 44 is guided via the second deflecting roller 43 located in the hollow compart ment 40 out of the latter and between both rollers 10 and 12, again the excess portion of the treatment liquid is squeezed out. Textile web 44 treated in this manner can now be dried or otherwise further treated and wound onto a second non-illustrated supply roller.

In FIGURE 3 the rollers 12 and 13, similar as with the previously described manner of use of the apparatus of FIGURE 2, are uniformly pressed against both stationary rollers 10 and 11, whereby again only the work cylinders 28 and 29 and pistons 30a and 31a respectively rock the rollers 12 and 13 respectively, in the direction of the arrows C and D respectively. Once again, there is thus formed the hollow compartment 40 and the trough 41 in which either the same or two different treatment liquids 40a and 41a can be introduced. In this instance, only a single deflecting roller 43 is provided within the hollow compartment 40, again having the function of enabling the treatment liquid 40a to contact both faces of the textile web 44. The textile web 44 guided vertically from above between both rollers 11 and 12 is trained about the deflecting roller 43 and delivered between both rollers 10 and 12. Analogous to the first described situation of FIGURE 2 the textile web 44 is initially immersed in the treatment liquid 41a located in the trough 41 and then freed of the surplus of this first treatment liquid between the rollers 11 and 12, whereafter the textile web 44 immediately arrives at the second treatment liquid 40a and such excess second liquid is squeezed out between the rollers 10 and 12. Further treatment and winding-up of the textile web can then take place in a similar manner as the first condition of use described in FIGURE 2.

FIGURE 4 depicts the situation where only the upper pivotable roller 12 is pressed against the upper stationary roller 11 while the other pivotable roller 13 does not contact either of both stationary rollers 10 and 11. The piston 30a of work cylinder 28 (FIGURE 1) displaces the roller 12 in the direction of arrow C (FIGURE 4), whereas the piston 20b of the work cylinder 20 via eccentric shaft 16 at the same time displaces the roller 12 in the direction of arrow A. Due to displacement of roller 12 in two diflerent directions A, C there results a horizontal displacement so that the roller 12 is only pressed against the stationary roller 11, while the roller 13 is rocked in the direction of arrow D away from both stationary rollers 10 and 11, of which only the upper roller 11 is driven. As clearly evidenced by referring to FIG- URE 4, in this instance only trough 41 is formed. Trough 41 is filled with a suitable treatment liquid 41a. The textile web 44 guided vertically from above between both of the rollers 11 and 12 immerses in the treatment liquid 41a located in the trough 41, thereafter the excess portion of this treatment liquid is squeezed out between the rollers 11 and 12. Such textile web 44 is then delivered via the deflecting roller 43 to any desired further treatment stations and the non-illustrated wind-up roller. As obvious from FIGURE 4 the roller 13 could serve as deflecting roller, however the textile web 44 can also be guided such that it is not contacted by such roller 13.

In accordance with the arrangement of FIGURE 5 there is provided a special container or reservoir 47 for a treatment liquid 47a and in which there is arranged a deflecting roller 48. The textile web 44 arrives directly from'the supply roller into contact with the treatment liquid 47a contained in container 47, is guided about the deflecting roller 48 vertically from beneath and passed between both rollers and 13 between which the surplus portion of such treatment liquid is squeezed out. The textile web 44 is then delivered via the deflecting roller 43 to further possible treatment stations and the non-illustrated wind-up roller. In this case the work piston 31a of the work cylinder 29 displaces the roller 13 in the direction of arrow D while the work piston 21b of work cylinder 21 displaces the roller 13 in the direction of arrow b through the agency of the eccentric shaft 17. Due to displacement of roller 13 in two directions B and D there results a horizontal displacement, so that the roller 13 is only pressed against the lower stationary roller 10 and not against the upper stationary roller 11, whereas the roller 12 is rocked in the direction of arrow C away from both stationary rollers 10 and 11.

In FIGURE 6, similar as in FIGURE 2, both pivotable rollers 12 and 13 are pressed against both stationary rollers 10 and 11 in the direction of arrows C and D respectively. The arrangement of FIGURE 6 differs from that of FIGURE 2 only insofar as the direction of movement of the textile web 44 is concerned. Here, textile web 44 is payed-off a non-illustrated supply roller and delivered horizontally from the side between both rollers 11 and 13 through the agency of likewise non-illustrated deflecting rollers arranged in suitable manner. As a result, textile web 44 is immersed in the treatment liquid 40a available between the four rollers 10, 11, 12 and 13. The textile web 44 guided over a deflecting roller 49 then arrives between the rollers '10 and 13 where the excess portion of the treatment liquid 40a is squeezed off. Then, textile web 44 is guided over further deflecting rollers 51 and 52, or other mechanism, a non-illustrated dryer for instance, horizontally from the left between both rollers 10 and 12 and arrives a second time in contact with the treatment liquid 40a located in the hollow compartment 40. Next, textile web 44 is guided via the second deflecting roller 50 located in this hollow compartment 40 between both rollers 11 and 12, where again the excess portion of the treatment liquid 40a is squeezed out. The thus treated textile web 44 which is discharged towards the top can now be dried or otherwise still further processed and Wound upon a second nonillustrated supply roll.

According to FIGURE 7, and similar to the arrangement of FIGURES 2, 3 and 6, the rollers 12 and 13 are uniformly pressed against both stationary rollers 10 and 11, as generally indicated by the arrows C and D respectively. Once again, hollow compartment 40 and trough 41 are formed, yet in this instance only the hollow compartment 40 is filled with treatment liquid 40a. Similar to the arrangement of FIGURE 3 only a single deflecting roller 43 is provided in the hollow compartment 40 which serves to render possible impingement of treatment liquid 40a with both faces or sides of the textile web 44. The textile web 44 shown guided from the right side between both rollers 11 and 13 is trained about the deflecting roller 43 and delivered between both rollers 11 and 12. Thus, in contrast with the embodiment of FIGURE 3, here the textile web 44 is squeezed between rollers 11 and 13 before it arrives at the treatment liquid 40a and any excess liquid is squeezed out between the rollers 11 and 12. Further treatment and winding-up of 6 the textile web then takes place analogous to the other previously considered examples.

In contrast with the arrangement of FIGURE 4, FIG- URE 8 has the upper pivotable roller 12 pressed against both stationary rollers 10 and 1.1, whereas the other pivotable roller 13 does not contact either of both rollers 10 and 11. Displacement of both pivotable rollers 12 and 13 into the position depicted in FIGURE 8 is indicated by the arrows C and D respectively. By further referring to FIGURE 8 it will be seen that there is thus only formed the trough 41 filled with treatment liquid 41a. The textile web 44 guided vertically from above between both rollers 11 and 12 immerses in the treatment liquid 41a located in the trough 41 and subsequently the excess of this liquid is squeezed out between the rollers 11 and 12. The textile web 44 is then delivered to a special container or reservoir 47 via the deflecting rollers 42 and 45. In the reservoir 47 there is arranged the deflecting roller 48 which immerses the textile web 44 in a second treatment liquid 47a stored in reservoir 47. After treatment of the textile web 44 with the second liquid 47a it arrives via the deflecting roller 43 between the rollers 10* and 12, between which the excess component of the second treatment liquid 47a is squeezed out. The textile web 44 then arrives at further possible treatment stations, or is delivered to the non-illustrated wind-up roller.

According to FIGURE 9 both of the pivotable rollers 12 and 13 are pressed in the direction of the arrows C and D respectively, against the stationary rollers 10 and 1.1 respectively, so that again a hollow compartment 40 appears in which there is housed a treatment liquid 40a. Before the textile web 44 arrives in contact with the treatment liquid 40a in hollow compartment 40 it is freed of any excess portion of treatment liquid between both rollers 10 and 12. The textile web 44 leaving between the rollers 10 and 13 arrives vertically from above about a deflecting roller 48 and comes into contact with a second treatment liquid 47a provided in a separate container 47, from there is delivered to possible further treatment stations, for instance, a drying installation, and then to a non-illustrated wind-up roller.

In FIGURE 10 the one pivotable roller 12 is pressed, in the manner previously considered, against the stationary roller 11 as indicated by the arrows A and C, whereas the other pivotable roller 13 is pressed against the stationary roller 10' as indicated by the arrows B and D. The textile web 44 wound-off of a non-illustrated sup ply roll arrives over the deflecting rollers 45 and 42 from beneath between the rollers 11 and .12 and is squeezed by these rollers before it arrives in contact with the treatment liquid 41a located in the trough 41 formed by rollers 11, 12. After leaving this treatment liquid 41a the textile web 44 is dried. The drying installation is here schematically indicated by the rollers 55 over which the textile web 44 is guided in a substantially zig-zag shaped path. After drying textile web 44 is trained about the deflecting rollers 46 and 43, arriving between the rollers 10 and 13 between which it is squeezed. Thereafter, this textile web 44 is immersed in a second treatment liquid 56 located in a container 58 in which, for instance, five deflecting rollers 57 are arranged in order to immerse the textile web 44 in the treatment liquid 56 over a large path. After leaving this treatment liquid 56 the textile web 44 is introduced to further possible treatment stations, then wound-up upon a suitable supply roller.

As can be clearly recognized by referring to FIGURE 11 the textile web 44 can initially be introduced into a treatment liquid 47a located in a separate container or reservoir 47 and, in so doing, textile web 44 travels over the deflecting roller 48. Thereafter, the excess portion of this treatment liquid 47a is squeezed out between rollers 10 and 13, whereupon textile web 44 arrives at a second treatment liquid 40a located in the hollow compartment 40 formed by the rollers 10, 11, 12 and 13. The excess portion of this second treatment liquid 40a is squeezed out between the rollers 10 and 12, the textile web 44 then is delivered to a drying installation depicted in FIGURE 11 by the five deflecting rollers 55. After drying the textile web 44 comes into contact with a third treatment liquid 41a located in the trough 41 formed by both rollers 11 and 12. The excess portion of this third treatment liquid 41a is squeezed out by means of rollers 11 and 12. Thereafter, the textile web 44 once again arrives in con tact with the second treatment liquid 40a located in the hollow compartment 40. Then, the excess portion of such second treatment liquid 40a is squeezed out between the rollers 11 and 13, the textile web 44 then arrives at further possible treatment stations, and is finally wound onto a supply roller.

While there is shown and described present preferred embodiments of the invention it is to be distinctly understood that the invention is not limited thereto but may be otherwise variously embodied and practised within the scope of the following claims:

What is claimed is:

1. Apparatus for squeezing out liquids from web-shaped textile materials, comprising four parallel rotatable pressure rollers enclosing a treatment chamber, stationary mountings for two of said rollers, two pivoting levers each carrying one of the other two rollers, whereby said other two rollers are movable towards and away from said stationarily mounted rollers, said four rollers being mounted in pairs of two superposed rollers, one of said two stationary rollers being the lower one of one pair of rollers and the other stationary roller being the upper one of the other pair of rollers, driving means coupled with said stationary rollers for selectively driving one or the other or both of said rollers, eccentric means pivotally carrying said levers, and separate actuating means operatively connected with each lever and each eccentric means, whereby said movable rollers are displaceable independently of each other toward and away from said stationary rollers.

2. Apparatus as claimed in claim 1, wherein said actuating means for each lever include a first actuating means operatively connected to one lever arm for pivoting said lever about said eccentric means, and a second actuating means for turning said eccentric means, whereby each of said movable rollers can be selectively displaced for cooperation with one or the other or both of said stationary rollers.

References Cited UNITED STATES PATENTS 2/1934 Karrer 6822 2/1965 Wippermann et al. 68--13 X IRVING BUNEVICH, Primary Examiner. 

1. APPARATUS FOR SQUEEZING OUT LIQUIDS FROM WEB-SHAPED TEXTILE MATERIALS, COMPRISING FOUR PARALLEL ROTATABLE PRESSURE ROLLERS ENCLOSING A TREATMENT CHAMBER, STATIONARY MOUNTINGS FOR TWO OF SAID ROLLERS, TWO PIVOTING LEVERS EACH CARRYING ONE OF THE OTHER TWO ROLLERS, WHEREBY SAID OTHER TWO ROLLERS ARE MOVABLE TOWARDS AND AWAY FROM SAID STATIONARY MOUNTED ROLLERS, SAID FOUR ROLLERS BEING MOUNTED IN PAIRS OF TWO SUPERPOSED ROLLERS, ONE OF SAID TWO STATIONARY ROLLERS BEING THE LOWER ONE OF ONE PAIR OF ROLLERS AND THE OTHER STATIONARY ROLLER BEING THE UPPER ONE OF THE OTHER PAIR OF ROLLERS, DRIVING MEANS COUPLED WITH SAID STATIONARY ROLLERS FOR SELECTIVELY DRIVING ONE OR THE OTHER OR BOTH OF SAID ROLLERS, ECCENTRIC MEANS PIVOTALLY CARRYING SAID LEVERS, AND SEPARATE ACTUATING MEANS OPERATIVELY CONNECTED WITH EACH LEVER AND EACH ECCENTRIC MEANS, WHEREBY SAID MOVABLE ROLLERS ARE DISPLACEABLE INDEPENDENTLY OF EACH OTHER TOWARD AND AWAY FROM SAID STATIONARY ROLLERS. 